iMac (21.5-inch, Late 2013) - Technical Specifications
1TB Solid State Drive (SSD) PCIe 1TB for iMac 21.5-inch A1418, iMac 27-inch A1419, Mac mini, Mac Pro, MacBook Air 11-inch A1465
iMac 21.5 and 27-inch 2013-2019 PCIe NVME SSD|FlexxMemory|free UK delivery
Apple iMac 2013 (Late) 21.5-inch (iMac 14,3) SSD ,Ram & OSX Upgrades - ZD Laptop Service Centre
Speed Up Slow 21 Inch iMac - Quick and Effective Tips
21.5-inch iMac (Late 2013) Review: Iris Pro Driving an Accurate Display
I got a FREE 2013 iMac 21.5 with internal upgrades including Samsung evo ssd and 16gigs of ram. Then used open legacy patcher to install Mac OS Venture 13.5 beta. : r/OSXBeta
Apple iMac (21.5 pollici, fine 2013, i5 2.7GHz 4-Core) Ricondizionato - FlashMac